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Finding the Fourth Proportional to 2,796.81, 4,195.17 and 716.80

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Solution

The fourth proportional to 2,796.81, 4,195.17 and 716.80 is: 1,075.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,796.81 : 4,195.17 = 716.80 : x
  2. Step 2: Convert to fraction form
    2,796.81/4,195.17 = 716.80/x
  3. Step 3: Cross multiply
    2,796.81x = 4,195.17 × 716.80
  4. Step 4: Simplify right side
    2,796.81x = 3,007,097.86
  5. Step 5: Solve for x
    x = 3,007,097.86/2,796.81
  6. Step 6: Final answer
    x = 1,075.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.